3-[1-(4-chloro-phenyl)-(Z)-methylidene]-1-phenyl-3,4-dihydropyrazino[1,2-a]indole

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 3-[1-(4-chloro-phenyl)-(Z)-methylidene]-1-phenyl-3,4-dihydropyrazino[1,2-a]indole
• 英文别名: (3Z)-3-[(4-chlorophenyl)methylidene]-1-phenyl-4H-pyrazino[1,2-a]indole
• 化学式: C₂₄H₁₇ClN₂
• 分子量: 368.865
• InChiKey: AWQDBJNYPANYQA-STZFKDTASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.1
• 重原子数：
  27
• 可旋转键数：
  2
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.04
• 拓扑面积：
  17.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  1H-吲哚-2-基(苯基)甲酮 在 四(三苯基膦)钯 sodium hydroxide 、 copper(l) iodide 、 四丁基溴化铵 、 氨 、 四氯化钛 、 potassium carbonate 作用下， 以 甲醇 、 水 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 12.22h， 生成 3-[1-(4-chloro-phenyl)-(Z)-methylidene]-1-phenyl-3,4-dihydropyrazino[1,2-a]indole
  参考文献：
  名称：

  Intramolecular Cyclization of δ-Iminoacetylenes:  A New Entry to Pyrazino[1,2-a]indoles

  摘要：

  The synthesis of the pyrazino[1,2-alpha]indole nucleus was achieved by intramolecular cyclization of several 2-carbonyl-1-propargylindoles in the presence of ammonia. The reaction conditions were optimized using microwave heating and a pool of catalysts. Cyclization of 1-alkynylindole-2-carbaldehydes was easily accomplished under standard heating conditions, whereas microwave heating contributed to reduced reaction times and improved overall yields. Moreover, a fine-tuning of the microwave irradiation time made possible the selective synthesis of both pyrazino[1,2-alpha]indole isomers. TiCl4 proved the catalytic system of choice to achieve pyrazinoindoles in satisfactory yields starting from 1-alkynyl-2-acetylindoles and 1-alkynyl-2-benzoylindole derivatives. Also in these cases, microwave heating contributed to faster reactions and improved yields. The uncatalyzed versus catalyzed reaction mechanism is discussed.

  DOI：

  10.1021/jo0502246

文献信息

• Intramolecular Cyclization of δ-Iminoacetylenes:  A New Entry to Pyrazino[1,2-<i>a</i>]indoles
  作者：Giorgio Abbiati、Antonio Arcadi、Alessandra Bellinazzi、Egle Beccalli、Elisabetta Rossi、Simona Zanzola

  DOI：10.1021/jo0502246

  日期：2005.5.1

  The synthesis of the pyrazino[1,2-alpha]indole nucleus was achieved by intramolecular cyclization of several 2-carbonyl-1-propargylindoles in the presence of ammonia. The reaction conditions were optimized using microwave heating and a pool of catalysts. Cyclization of 1-alkynylindole-2-carbaldehydes was easily accomplished under standard heating conditions, whereas microwave heating contributed to reduced reaction times and improved overall yields. Moreover, a fine-tuning of the microwave irradiation time made possible the selective synthesis of both pyrazino[1,2-alpha]indole isomers. TiCl4 proved the catalytic system of choice to achieve pyrazinoindoles in satisfactory yields starting from 1-alkynyl-2-acetylindoles and 1-alkynyl-2-benzoylindole derivatives. Also in these cases, microwave heating contributed to faster reactions and improved yields. The uncatalyzed versus catalyzed reaction mechanism is discussed.